ESD ECU Communication Line Inspection
When the data (for status of ESD system) is not sent from the ESD ECU to the meter unit and ECU, the service code 3C is displayed.
The data is sent through the CAN communication line.
The service code 3C is detected with the meter unit.
The FI symbol does not appear in this error code.
When the service code 3C is detected, the yellow warning indicator light (LED) [A] goes on, and the ESD warning symbol [B] and code of 3C [C] displayed on the LCD.
Special Tool - Hand Tester: 57001-1394
Wiring Inspection ESD ECU Connector [A] ←→ Meter Unit Connector [B] GY/BL lead (ESD ECU terminal 10) [C] LB lead (ESD ECU terminal 1) [D]
If the wiring is good, replace the ESD ECU (see ESD ECU Removal/Installation in the Steering chapter).
Gear Position Switch Output Voltage Inspection
NOTE
Be sure the battery is fully charged.
Turn the ignition switch to OFF.
Remove the fuel tank (see Fuel Tank Removal in the Fuel
System (DFI) chapter).
Disconnect the sidestand switch/gear position switch lead
connector [A].
Connect the measuring adapter [A] between the ...
Parts Location
1. Timing Rotor
2. Crankshaft Sensor
3. Horn
4. Oil Pressure Switch
5. Rear Brake Light Switch
6. Oxygen Sensor (Equipped Models)
7. Alternator
8. Stator Coil
9. Gear Position Switch
10. Sidestand Switch
11. Immobilizer Amplifier (Equipped Models)
12. Radiator Fan Motor
1 ...
Turn Signal Relay Inspection
Remove the battery (see Battery Removal).
Take the turn signal relay [A] off the rear fender.
Disconnect the connector [B].
Connect one 12 V battery and turn signal lights as indicated
in the figure, and count how many times the lights
blink for one minute.
Turn Signal Relay ...